NB> For Christmas, my wife bought me a Radio Shack "super accurate auto-
 NB> set digital clock" (cat. # 63-970) that sets 
 NB> itself to the NIST time broadcasts. I was 
 NB> wondering what frequency it actually uses. I know 
 NB> WWV broadcasts on 5, 10, 15, and 20 MHz, and WWVB 
 NB> transmits on 60 KHz. Judging from the fact that it 
 NB> uses a ferrite rod antenna, and that reception is 
 NB> better at night, night, and that, as far as I know 
 NB> WWV doesn't transmit any type of "packet," 
 NB> "telemetry" or "compuerter data" on their signals, 
 NB> I believe it is actually picking up WWVB. The 
 NB> owners manual says "WWV," but it doesn't make any 
 NB> mention of frequency.
 
   I believe there's a 100hz subcarrier on all the WWV/WWVH broadcasts with 
time and date information.
 
   WWVB consists of nothing but such information, on its carrier. (Working 
from menory, now. I do have the exact information somewhere...)
 
   Frank 
--- Maximus 2.01wb
---------------